Contents  on 6 November '12

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

Traffic Report  on 6 November '12

Five objects reported inside ten LD

Five visitors are reported to be inside ten lunar distances (LD) of Earth today. Within Earth's Hill sphere, 2012 VD5 comes its closest to Earth on this passage, reaching 1.54 LD at 1038 UTC, and its closest to the Moon -- 2.38 LD at 1451 UTC, while 2012 UX136 is moving away from 3.04 to 3.71 LD. Out further, 2012 VL5 is outbound from 6.58 to 7.48 LD and 2012 UL171 from 8.0 to 8.2 LD*, and 2012 UV136 is inbound from 7.09 to 6.59 LD,

Next up, newly announced 2012 VQ6 joins 2012 VB5 and risk-listed 2012 UY68 in coming inside ten LD tomorrow. Radar target 2010 JK1 arrives on November 22nd.

This report was updated at 2117 UTC with new discovery 2012 VQ6 (MPEC). Today's first traffic report was generated at 1638 UTC with follow-up in today's DOU MPEC for 2012 VL5, 2012 VD5, and 2012 VB5 as well as departed 2012 UK171 and 2012 LA, plus observation of 2012 QG42 from September.


Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. Object distances are interpreted by A/CC from JPL Horizons data. "LD*" indicates some passage uncertainty. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 6 November '12

The MPC's NEO Confirmation Page has 60 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 60 objects listed. Of these, 38 were "one nighters." So far The Tracking News has counted a total of 92 listings on the NEOCP today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 6 November '12

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been 20 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2012-V40 - "19:46 UT" - Comet C/2012 V1 (Panstarrs)


MPEC 2012-V39 - "19:18 UT" - 2012 VT6


MPEC 2012-V38 - "18:42 UT" - 2012 VS6


MPEC 2012-V37 - "18:39 UT" - 2012 VR6


MPEC 2012-V36 - "18:37 UT" - 2012 VQ6


MPEC 2012-V35 - "18:35 UT" - 2012 VP6


MPEC 2012-V34 - "18:32 UT" - 2012 VO6


MPEC 2012-V33 - "18:30 UT" - 2012 VN6


MPEC 2012-V32 - "18:27 UT" - 2012 VM6


MPEC 2012-V31 - "18:25 UT" - 2012 VL6


MPEC 2012-V30 - "18:17 UT" - 2012 VK6


MPEC 2012-V29 - "18:15 UT" - 2012 VJ6


MPEC 2012-V28 - "18:13 UT" - 2012 VH6


MPEC 2012-V27 - "18:10 UT" - 2012 VG6


MPEC 2012-V26 - "18:08 UT" - 2012 VF6


MPEC 2012-V25 - "18:05 UT" - 2012 VE6


MPEC 2012-V24 - "18:02 UT" - 2012 VD6


MPEC 2012-V23 - "18:00 UT" - 2012 VC6


MPEC 2012-V22 - "14:27 UT" - 2005 WD


<< DOU on 6 Nov. '12 >>  MPEC 2012-V21 - "06:04 UT" - Daily Orbit Update

Observers  on 6 November '12

A total of 28 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 18 in MPECs 2012-V21, 2012-V23, 2012-V26, 2012-V27, 2012-V29, 2012-V30, 2012-V32, 2012-V34, 2012-V35, 2012-V36, 2012-V38, 2012-V39 & 2012-V40 -- 2012 VT6, 2012 VS6, 2012 VQ6, 2012 VP6, 2012 VO6, 2012 VM6, 2012 VK6, 2012 VJ6, 2012 VG6, 2012 VF6, 2012 VC6, C/2012 V1, 2012 UX27, 2012 UT169, 2012 US136, 2012 UR158, 2012 TT5, 2012 LA
I74Baxter Garden Obs. in England, 1 in MPEC 2012-V21 -- 162679
B88Bigmuskie Obs. in Italy, 2 in MPEC 2012-V21 -- 2012 US136, 2012 UK171
703Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2012-V21 -- 2012 UK171, 2012 TQ139, 1999 VR6, 277127, 144411
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 3 in MPEC 2012-V21 -- 2010 LR33, 2009 AV, 1997 UH9
448Desert Moon Obs. in New Mexico, 4 in MPEC 2012-V21 -- 2012 UZ33, 2012 TD53, 2007 UQ13, 275611
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 2 in MPECs 2012-V21 & 2012-V22 -- 2012 VD5, 2005 WD
F657Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2012-V40 -- C/2012 V1
203GiaGa Obs. in Italy, 2 in MPECs 2012-V38 & 2012-V40 -- 2012 VS6, C/2012 V1
J95Great Shefford Obs. in England, 9 in MPECs 2012-V21, 2012-V22, 2012-V26, 2012-V36, 2012-V39 & 2012-V40 -- 2012 VT6, 2012 VQ6, 2012 VL5, 2012 VG5, 2012 VF6, 2012 VD5, 2012 VB5, C/2012 V1, 2005 WD
G89Kachina Obs. in Arizona, 1 in MPEC 2012-V21 -- 2003 VO2
704LINEAR in New Mexico, 5 in MPECs 2012-V21 & 2012-V22 -- 2012 VC5, 2005 WD, 2002 TY68, 18882, 162679
5682David Tholen's team on Mauna Kea in Hawaii, 4 in MPECs 2012-V21 & 2012-V40 -- C/2012 V1, 2012 QG8, 2012 PA, 2012 MQ
900Moriyama Obs. in Japan, 1 in MPEC 2012-V22 -- 2005 WD
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2012-V21, 2012-V26, 2012-V32, 2012-V36, 2012-V37, 2012-V38 & 2012-V39 -- 2012 VT6, 2012 VS6, 2012 VR6, 2012 VQ6, 2012 VM6, 2012 VF6, 2012 RF15, 155334, 11054
F51Pan-STARRS 1 (PS1) in Hawaii, 23 in MPECs 2012-V21, 2012-V23, 2012-V24, 2012-V25, 2012-V26, 2012-V27, 2012-V28, 2012-V30, 2012-V31, 2012-V33, 2012-V34, 2012-V35 & 2012-V40 -- 2012 VP6, 2012 VO6, 2012 VN6, 2012 VL6, 2012 VK6, 2012 VH6, 2012 VG6, 2012 VF6, 2012 VE6, 2012 VD6, 2012 VC6, C/2012 V1, 2012 TJ146, 2004 TL19, 2002 UZ30, 1998 ST27, 89136, 341050, 337084, 333311, 251722, 163081, 138815
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2012-V22 -- 2005 WD
H36Sandlot Obs. in Kansas, 2 in MPECs 2012-V39 & 2012-V40 -- 2012 VT6, C/2012 V1
204Schiaparelli Obs. in Italy, 6 in MPECs 2012-V23, 2012-V26, 2012-V32, 2012-V36, 2012-V38 & 2012-V40 -- 2012 VS6, 2012 VQ6, 2012 VM6, 2012 VF6, 2012 VC6, C/2012 V1
J84South Obs. in England, 2 in MPECs 2012-V21 & 2012-V39 -- 2012 VT6, 2012 UK171
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2012-V21 & 2012-V29 -- 2012 VJ6, 2006 WN1, 256004, 8034, 3199
291Spacewatch 1.8m telescope in Arizona, 29 in MPECs 2012-V21, 2012-V23, 2012-V24, 2012-V25, 2012-V26, 2012-V27, 2012-V28, 2012-V29, 2012-V30, 2012-V31, 2012-V33, 2012-V34, 2012-V35, 2012-V36, 2012-V37, 2012-V39 & 2012-V40 -- 2012 VT6, 2012 VR6, 2012 VQ6, 2012 VP6, 2012 VO6, 2012 VN6, 2012 VL6, 2012 VK6, 2012 VJ6, 2012 VH6, 2012 VG6, 2012 VF6, 2012 VF5, 2012 VE6, 2012 VE5, 2012 VD6, 2012 VC6, C/2012 V1, 2012 UZ33, 2012 UW136, 2012 UR138, 2012 UR136, 2012 UE34, 2012 TX284, 2012 TS5, 2012 TF53, 2012 SH32, 2009 EK1, 1999 VR6
926Tenagra II Obs. in Arizona, 1 in MPEC 2012-V21 -- 5646
G56Walnut Creek Obs. in northern California, 4 in MPECs 2012-V21 & 2012-V22 -- 2012 UK171, 2005 WD, 333358, 276397
I42Westport Obs. in Massachusetts, 7 in MPEC 2012-V21 -- 2012 UK171, 2012 TY79, 2012 SA59, 2012 QB17, 2008 HV4, 2004 UB, 338292
G33Wickede Obs., 1 in MPEC 2012-V21 -- 2012 QG42
718Wiggins Obs. in Utah, 2 in MPECs 2012-V21 & 2012-V22 -- 2012 UK171, 2005 WD
I15Wishing Star Obs. in Rhode Island, 6 in MPEC 2012-V21 -- 2012 TK123, 2012 TJ146, 2012 RX16, 2012 QF49, 99907, 17182
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 November '12

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON2 risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2012 VK6NEODyS23592051-207533.94e-10-6.67-6.810NEODyS: "Based on 10 optical observations (of which 0 are rejected as outliers) from 2012-11-04.221 to 2012-11-06.176."
JPL Sentry20492019-21121846.1e-07-3.88-5.030JPL: "Analysis based on 10 observations spanning 1.9543 days (2012-Nov-04.220655 to 2012-Nov-06.17497)." Diameter approximately 0.226 km. from mean, weighted H=20.9.
2012 VJ6JPL Sentry20492022-2112159.2e-08-4.04-4.320JPL: "Analysis based on 14 observations spanning 2.2605 days (2012-Nov-04.16793 to 2012-Nov-06.42848)." Diameter approximately 0.536 km. from mean, weighted H=19.0.
NEODyS20492022-206462.97e-08-4.29-4.610NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2012-11-04.169 to 2012-11-06.429."
2012 VF5JPL Sentry1636208613.3e-10-6.39-6.390JPL: "Analysis based on 17 observations spanning 2.8653 days (2012-Nov-03.21501 to 2012-Nov-06.08031)." Diameter approximately 0.660 km. from mean, weighted H=18.5.
2012 VE5JPL Sentry16362038-2104569.6e-07-3.79-4.870JPL: "Analysis based on 13 observations spanning 2.8612 days (2012-Nov-03.212285 to 2012-Nov-06.07352)." Diameter approximately 0.349 km. from mean, weighted H=19.9.
2012 UE34JPL Sentry16362091-2111172.9e-07-6.08-6.280JPL: "Analysis based on 31 observations spanning 17.851 days (2012-Oct-18.393522 to 2012-Nov-05.24455)." Diameter approximately 0.080 km. from mean, weighted H=23.2.
NEODyS1636R E M O V E D-
2012 UZ33JPL Sentry1636R E M O V E DJPL: Risk listing removed at 1051 UTC.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology  on 6 November '12

Times are UTC for when items were noted or added by The Tracking News.

2359Noted that NEODyS has posted 2012 VK6 as an impact risk - see above
2117Updated Traffic Report
2049Noted that JPL Sentry has posted 2012 VJ6 as an impact risk - see above
Noted that NEODyS has posted 2012 VJ6 as an impact risk - see above
Noted that JPL Sentry has posted 2012 VK6 as an impact risk - see above
Grabbed MPEC 2012-V40 - Comet C/2012 V1 (Panstarrs) - see above
1947Grabbed MPEC 2012-V39 - 2012 VT6 - see above
1903Grabbed MPEC 2012-V28 - 2012 VH6 - see above
Grabbed MPEC 2012-V29 - 2012 VJ6 - see above
Grabbed MPEC 2012-V30 - 2012 VK6 - see above
Grabbed MPEC 2012-V31 - 2012 VL6 - see above
Grabbed MPEC 2012-V32 - 2012 VM6 - see above
Grabbed MPEC 2012-V33 - 2012 VN6 - see above
Grabbed MPEC 2012-V34 - 2012 VO6 - see above
Grabbed MPEC 2012-V35 - 2012 VP6 - see above
Grabbed MPEC 2012-V36 - 2012 VQ6 - see above
Grabbed MPEC 2012-V37 - 2012 VR6 - see above
Grabbed MPEC 2012-V38 - 2012 VS6 - see above
1811Grabbed MPEC 2012-V23 - 2012 VC6 - see above
Grabbed MPEC 2012-V24 - 2012 VD6 - see above
Grabbed MPEC 2012-V25 - 2012 VE6 - see above
Grabbed MPEC 2012-V26 - 2012 VF6 - see above
Grabbed MPEC 2012-V27 - 2012 VG6 - see above
1636Noted that JPL Sentry has updated its 2012 UE34 risk assessment - see above
Noted that NEODyS has removed 2012 UE34 as an impact risk - see above
Noted that JPL Sentry has removed 2012 UZ33 as an impact risk - see above
Noted that JPL Sentry has updated its 2012 VE5 risk assessment - see above
Noted that JPL Sentry has updated its 2012 VF5 risk assessment - see above
Grabbed MPEC 2012-V21 - Daily Orbit Update - see above
Grabbed MPEC 2012-V22 - 2005 WD - see above